Try to get as close to her as possible and as quickly as possible by dashing, find a simple combo she can do like square, square, square or along those lines, try to hit her twice with the combo which may give you a 5 or so combo depending if you hit her when she was in mid air or whatever, but the is a pause after you do the combo allowing you to get in a sneaky uppercut or a grab and even if you dont or cant get a long combo, just make sure you end with a grab or an uppercut. you are not looking to defeat her, just take off more health than she takes of you.